docs: def __start(self):  # pragma: no cover
          """Starts the real-time engine that captures tasks."""
  
          assert not self.dispatcher_thread
  
          self.dispatcher_thread = threading.Thread(target=self.__run_dispatcher,
                                                    name='clearly-dispatcher')
          self.dispatcher_thread.daemon = True
          self.running = True  # graceful shutdown
          self.dispatcher_thread.start()